GT550 cylinder interchangeable?

Need some help? Put your question up here. Many years of experience on the board to help you get up and running.

Moderators: oldjapanesebikes, H2RICK, diamondj, Suzsmokeyallan

Post Reply
TheFinland
Still in the Driveway
Posts: 6
Joined: Mon Apr 11, 2022 9:30 am
Country: USA
Suzuki 2-Strokes: 1975 GT550M

GT550 cylinder interchangeable?

Post by TheFinland »

I've run into an issue. I had some work done on my engine, and the people who were doing the cylinder coating have melted 2 of my cylinders. I have been told it's the center and one of the sides. I do not know which side.

Do the sides interchange? Or is there a mark on them to ID which ones are which?

All answers are much appreciated.
Craig380
Expert racer
Posts: 1250
Joined: Mon Dec 01, 2008 2:52 am
Location: Manchester, UK

Re: GT550 cylinder interchangeable?

Post by Craig380 »

Unfortunately the left and right cylinders do not swap, the cooling fins are not symmetrical.

I wonder how on earth they managed to melt the cylinders?
1976 GT380 - wounded by me, and sold on
2006 SV650S - killed by a patch of diesel and a kerb in Feb 2019
2017 SV650 AL7 - naked and unashamed
TheFinland
Still in the Driveway
Posts: 6
Joined: Mon Apr 11, 2022 9:30 am
Country: USA
Suzuki 2-Strokes: 1975 GT550M

Re: GT550 cylinder interchangeable?

Post by TheFinland »

Do you know a good way to identify which is which? Like how the exhaust bolts are? I'm having to do it all over the phone, which is mildly annoying to say the least.

I was told it may have been too much magnesium in the aluminum alloy. But the person who's doing the porting calls BS, as he's never had an issue like that.

I will update as I find out more.
User avatar
Alan H
Moto GP
Posts: 3160
Joined: Thu Feb 16, 2012 11:50 am
Country: England
Suzuki 2-Strokes: 4 x GT550s - J, M, A, B.
Location: The Republic of South Yorkshire

Re: GT550 cylinder interchangeable?

Post by Alan H »

Left & right exhaust ports (where the downpipes fit) point slightly outwards. Centre is straight.
Think of how stupid the average person is, then realise that half of them are more stupid than that.
User avatar
jabcb
Moto GP
Posts: 4240
Joined: Mon Dec 13, 2010 4:32 pm
Country: USA
Suzuki 2-Strokes: 69 T350 thru 75 GT750
Location: southwestern Pennsylvania

Re: GT550 cylinder interchangeable?

Post by jabcb »

What "cylinder coating" where they doing?
BAS (Bike Acquisition Syndrome) - too many bikes but have room for more

Suzuki:
GT750 2x75
GT550 72 & 75
GT380 72
T500 69 project & 73 project
T350 69 & 71
Honda 85 CB650SC & 86 CB700SC
09 Triumph Bonneville SE
TheFinland
Still in the Driveway
Posts: 6
Joined: Mon Apr 11, 2022 9:30 am
Country: USA
Suzuki 2-Strokes: 1975 GT550M

Re: GT550 cylinder interchangeable?

Post by TheFinland »

Nikasil. This was just the prep for it though.
vulcanman
To the on ramp
Posts: 346
Joined: Sun Mar 07, 2021 2:32 pm
Country: United Kingdom
Suzuki 2-Strokes: GT550A 1976

Re: GT550 cylinder interchangeable?

Post by vulcanman »

Who is doing your plating.Langcourts did a superb job on mine.
Post Reply